package com.example.demo.customer;

import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;

@Service
public class CustomerService {

    private final static Logger LOGGER = LoggerFactory.getLogger(CustomerService.class);
    private final  CustomerRepository customerRepository;
    @Autowired
    public  CustomerService(CustomerRepository customerRepository){
        this.customerRepository = customerRepository;
    }
    List<Customer> getCustomers(){
        LOGGER.info("getCustomers called");
        return customerRepository.findAll(); }

    Customer getCustomer(Long id){
        return  customerRepository
                .findById(id)
                .orElseThrow(() -> {
                   NotFoundException notFoundException = new NotFoundException("customer" + id +"无法找到");
                   LOGGER.error("error:getCustomer {}" + id,notFoundException);
                   return notFoundException;
                });


}
}